The answer is D my brother
They are more attracted by the oxygen atom than by the hydrogen atom.
Explanation:
In the polar bond of water which is made up of hydrogen and oxygen atoms, the shared electrons are more attracted by the oxygen atom than by the hydrogen atom.
The interatomic bond in water is a polar covalent bond.
In this bond type, two species shares their valence electrons.
The bond usually occurs between non-metals with an electronegativity difference that is small.
Oxygen is more electronegative compared to hydrogen.
- This implies that oxygen pulls the electron more closely to itself since it has a greater affinity.
- This leaves a partial negative charge on oxygen and a positive charge on hydrogen.
- The molecule is said to be polar covalent.
learn more:
Covalent bond brainly.com/question/5258547
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Answer:
Hope this helps!
Explanation:
Ans: 15.1 grams
Given reaction:
Na2CO3 + Ca(OH)2 → 2NaOH + CaCO3
Mass of Na2CO3 = 20.0 g
Molar mass of Na2CO3 = 105.985 g/mol
# moles of Na2CO3 = 20/105.985 = 0.1887 moles
Based on the reaction stoichiometry: 1 mole of Na2CO3 produces 2 moles of NaOH
# moles of NaOH produced = 0.1887*2 = 0.3774 moles
Molar mass of NaOH = 22.989 + 15.999 + 1.008 = 39.996 g/mol
Mass of NaOH produced = 0.3774*39.996 = 15.09 grams
You HAVE TO know that molarity (M) tells you the number of moles of a solute per Liters of solution.
M=mol/L
0.3M = 2.7 mol/ Volume
Volume = 2.7 mol/3.0 L
Volume = 0.9 L
